Kia Optima 2017, Owner'S Manual, Page: 95 / 776

CAUTION
Do not fold the key without pressing
the release button. This may dam‐
age the key.
Smart key
To remove the mechanical key, press
and hold the release button (1) and re‐
move the mechanical key (2).
To reinstall the mechanical key, put the
key into the hole and push it until a
click sound is heard.
WARNING
n Ignition key (smart key)
Leaving children unattended in a ve‐
hicle with the ignition key (smart
key) is dangerous even if the key is
not in the ignition or start button is
ACC or ON position. Children copy
adults and they could place the key
in the ignition or press the start but‐
ton. The ignition key (smart key)
would enable children to operate
power windows or other controls, or
even make the vehicle move, which
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could result in serious bodily injury
or even death. Never leave the keys
in your vehicle with unsupervised
children, when the engine is running.
WARNING
We recommend that you use parts
for replacement from an authorized
Kia dealer. If an aftermarket key is
used, the ignition switch may not re‐
turn to ON after START. If this hap‐
pens, the starter will continue to op‐
erate causing damage to the starter
motor and possible fire due to ex‐
cessive current in the wiring.
Immobilizer system (if
equipped)
Your vehicle may be equipped with an
electronic engine immobilizer system to
reduce the risk of unauthorized vehicle
use.
Your immobilizer system is comprised
of a small transponder in the ignition
key and electronic devices inside the
vehicle.
With the immobilizer system, whenever
you insert your ignition key into the ig‐
nition switch and turn it to ON or
whenever the engine start/stop button
is changed to the ON position, it checks
and determines and verifies if the igni‐
tion key is valid or not.
If the key is determined to be valid, the
engine will start.
If the key is determined to be invalid,
the engine will not start.
To activate the immobilizer system:
Turn the ignition key to the OFF posi‐
tion or change the engine start/stop
button to the OFF position. The immo‐
bilizer system activates automatically.
Without a valid ignition key for your ve‐
hicle, the engine will not start.
To deactivate the immobilizer
system:
Insert the ignition key into the key cyl‐
inder and turn it to the ON position or
change the engine start/stop button to
the ON position.
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Featur
es of your v
ehicle